Sunday Lake, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sunday Lake, a community in Snohomish County, Washington.
Today
71°F
Mostly Sunny
Mostly sunny. High near 71, with temperatures falling to around 69 in the afternoon. West wind 2 to 6 mph.
7-day forecast for Sunday Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Mostly Sunny | 2 to 6 mph W | 0% |
| Tonight | 50°F | Partly Cloudy | 1 to 5 mph NW | 0% |
| Sunday | 71°F | Partly Sunny | 1 to 7 mph WNW | 0% |
| Sunday Night | 50°F | Partly Cloudy | 1 to 7 mph NW | 0% |
| Monday | 70°F | Mostly Sunny | 1 to 7 mph W | 0% |
| Monday Night | 51°F | Partly Cloudy | 1 to 7 mph NNW | 1% |
| Tuesday | 67°F | Partly Sunny | 1 to 6 mph WNW | 1% |
| Tuesday Night | 50°F | Mostly Cloudy | 2 to 6 mph N | 13% |
| Wednesday | 67°F | Partly Sunny then Slight Chance Light Rain | 5 mph SSW | 17% |
| Wednesday Night | 50°F | Slight Chance Light Rain then Mostly Cloudy | 1 to 5 mph NW | 17% |
| Thursday | 66°F | Mostly Cloudy then Slight Chance Light Rain | 1 to 7 mph NW | 16% |
| Thursday Night | 49°F | Slight Chance Light Rain | 2 to 7 mph NW | 21% |
| Friday | 65°F | Slight Chance Light Rain then Partly Sunny | 2 to 7 mph NW | 21% |
| Friday Night | 48°F | Partly Cloudy | 2 to 7 mph N | 14% |
Forecast source: National Weather Service (api.weather.gov) for Sunday Lake (48.228, -122.270). Updated through the day.
Growing snapshot for Sunday Lake
Last spring frost
Apr 22
First fall frost
Oct 19
Growing season
181 days
Hardiness zone
8b
More local growing data for Sunday Lake: nearby ZIP 98292 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Alderwood Manor
Arlington
Arlington Heights
Bothell East
Bothell West
Brier
Bunk Foss
Canyon Creek
Cathcart
Cavalero
Chain Lake
Clearview
Darrington
Eastmont
Edmonds
Esperance
Everett
Fobes Hill
Gold Bar
Granite Falls
Hat Island
Kayak Point
Lake Bosworth
Lake Cassidy
Lake Cavanaugh
Lake Goodwin
Lake Roesiger
Lake Stevens
Lake Stickney
Larch Way
Climate data from the nearest NOAA station, Arlington, Wa (8.3 mi from Sunday Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.